问题 问答题 简答题

简述糖的营养功用

答案

参考答案:

(1)供给热能

(2)构成机体的重要物质

(3保护肝脏

(4)维持中枢神经系统的功能

(5)促进蛋白质的吸收与利用

(6)抗生酮作用

(7)维持心肌和骨骼肌的正常功能儿

多项选择题
阅读理解

四、阅读理解(40分)

Learning online should make use of a number of Internet tools: e-mail lets you exchange letters between continents very cheaply and almost immediately. Large groups of people can share their discussions by using electronic lists to send every letter to everyone on the list. Electronic magazines bring you up-to-date topics, such as news, arts, and sports. Search engines allow you to look for anything you want on the Internet, including the holdings of major libraries. In a chat room you can have a real-time written talk. Audio and video bring the world to your computer -— you can listen to the world's radio stations, watch the evening news from another continent. And in an online conference you can even talk to your teacher and fellow students abroad.

Do you have e-mail? How much do you communicate with your friends over the Internet? Internet, the newest child in technology, is like a modern communication highway. It's also a kind of super-shop, almost anything you can buy in a store -— you can get it through Internet, without leaving home at all.

56. What is the passage mainly about?

A. Internet    B. Radio stations    C. Magazines    D. Libraries

57. What is the quickest and cheapest way of getting in touch with your friend abroad?

A. By telegraph                 B. By air-mail 

C. By e-mail                    D. By telephone

58. Which of the following will you choose if you want to hold a meeting over the Internet?

A. Chat room                   B. Search engines  

C. Online conference             D. Electronic lists

59. In the writer’s opinion, it can be inferred that we might work _____ in the future.

A. in the office                  B. at home    

C. at the library                 D. in the store